I am having probl w/word problems.
A kitchen floor is covered w/altern black and white tiles. Ech tile is a 12 inch square. If the kitchen meas 10'x10' how many black tiles are on the floor?
Is this right
10 x 10= 100'
100' x12= 1200"
1200 divided by 12= 100
100 divided by 2= 50 black tiles
Your answer looks correct to me, but I don't see the relevance of the two intermediate steps. Each tile is one foot square; you've got 10x10=100 of them in a square, so it looks like a 10x10 chessboard. Half of those 100 squares will be black. (Just one thing: 10 feet x 10 feet = 100 square feet, not 100 feet, which is what 100' means.)
To solve this word problem, we need to find out how many black tiles are on the kitchen floor.
First, let's calculate the area of the kitchen floor:
10 feet x 10 feet = 100 square feet
Since each tile is a 12-inch square, we need to convert the measurements to inches:
100 square feet x 12 inches = 1200 square inches
Next, we need to find how many tiles fit in the area:
1200 square inches ÷ 144 square inches (since there are 144 square inches in a square foot) = 8.33 tiles
Since we can't have a fraction of a tile, we can only have whole tiles. So we can round down to 8 tiles.
Now, since the black and white tiles alternate, half of the tiles will be black. Therefore, we divide the number of tiles by 2:
8 tiles ÷ 2 = 4 black tiles.
So, there are 4 black tiles on the kitchen floor.